參數(shù)資料
型號(hào)： uPSD3233
廠商： 意法半導(dǎo)體
英文描述： Flash Programmable System Device with 8032 Microcontroller Core(嵌入高速“8032微控制器核”的Flash型可編程系統(tǒng)器)
中文描述： 閃存可編程系統(tǒng)器件與8032微控制器內(nèi)核（嵌入高速“8032微控制器核”的閃存型可編程系統(tǒng)器）
文件頁(yè)數(shù)： 130/164頁(yè)
文件大?。?/td> 1133K
代理商： UPSD3233
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μ
PSD3200 FAMILY
130/164
DRAFT(Thursday 20 June 2002, 13:15).
RESET TIMING AND DEVICE STATUS AT RESET
Upon Power-up,the PSD Modulerequires a Reset
(RESET) pulse of duration t
NLNH-PO
after V
CC
is
steady. During this period, the device loads inter-
nal configurations, clears some of the registers
and sets the Flash memory into Operating mode.
After the rising edge of Reset (RESET), the PSD
Module remains inthe Resetmode for an addition-
al period, t
OPR
, before the first memory access is
allowed.
The Flashmemory is reset tothe Read modeupon
Power-up.
Sector
Select
CSBOOT0-CSBOOT3) must all be Low, Write
Strobe (WR, CNTL0) High, during Power On Re-
set for maximum security of the data contents and
to remove thepossibility ofa byte being written on
the first edge of Write Strobe (WR). Any Flash
memory Write cycle initiation is prevented auto-
matically when V
CC
is below V
LKO
.
Warm Reset
Once the device is up and running, the PSD Mod-
ule canbe reset with a pulse of a much shorter du-
ration, t
NLNH
. The same t
OPR
period is needed
(FS0-FS7
and
before the device is operational after warm reset.
Figure 68 shows the timing of the Power-up and
warm reset.
I/O Pin, Register and PLD Status at Reset
Table 103 shows the I/O pin, register and PLD sta-
tus during Power On Reset, warm reset and Pow-
er-down mode. PLD outputs are always valid
during warm reset, and they are valid in Power On
Reset once the internal Configuration bits are
loaded. This loading is completed typically long
before the V
CC
ramps up to operating level. Once
the PLD is active, the state of the outputs are de-
termined by the PLD equations.
Reset of Flash Memory Erase and Program
Cycles
A Reset (RESET) also resets the internal Flash
memory state machine. During a Flash memory
Program or Erase cycle, Reset (RESET) termi-
nates the cycle and returns the Flash memory to
the Read mode within a period of t
NLNH-A
.
Table 103. Status During Power-On Reset, Warm Reset and Power-down Mode
Note: 1. The SR_cod and PeriphMode bits in the VM Register are always cleared to 0 on Power-On Reset or Warm Reset.
Port Configuration
Power-On Reset
Warm Reset
Power-down Mode
MCU I/O
Input mode
Input mode
Unchanged
PLD Output
Valid after internal PSD
configuration bits are
loaded
Valid
Depends on inputs to PLD
(addresses are blocked in
PD mode)
Address Out
Tri-stated
Tri-stated
Not defined
Peripheral I/O
Tri-stated
Tri-stated
Tri-stated
Register
Power-On Reset
Warm Reset
Power-down Mode
PMMR0 and PMMR2
Cleared to 0
Unchanged
Unchanged
Macrocells flip-flop status
Cleared to 0 by internal
Power-On Reset
Depends on .re and .pr
equations
Depends on .re and .pr
equations
VM Register
1
Initialized, based on the
selection in PSDsoft
Configuration menu
Initialized, based on the
selection in PSDsoft
Configuration menu
Unchanged
All other registers
Cleared to 0
Cleared to 0
Unchanged
相關(guān)PDF資料
PDF描述
uPSD3234(中文) Flash Programmable System Device with 8032 Microcontroller Core(嵌入高速“8032微控制器核”的Flash型可編程系統(tǒng)器)
uPSD3212C(中文) Flash Programmable System Devices with 8032 Microcontroller Core and 16Kbit SRAM(帶8032微控制器內(nèi)核和16Kbit SRAM的FLASH可編程系統(tǒng)器件)
uPSD3254A(中文) Flash Programmable System Devices with 8032 Microcontroller Core(帶8032微控制器內(nèi)核的FLASH可編程系統(tǒng)器件)
uPSD3254BV(中文) Flash Programmable System Devices with 8032 Microcontroller Core(帶8032微控制器內(nèi)核的FLASH可編程系統(tǒng)器件)
UPSD3234A Flash Programmable System Devices with 8032 Microcontroller Core
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
UPSD3233A-24T1 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Flash Programmable System Device with 8032 Microcontroller Core
UPSD3233A-24T1T 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Flash Programmable System Devices with 8032 Microcontroller Core
UPSD3233A-24T6 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Flash Programmable System Device with 8032 Microcontroller Core
UPSD3233A-24T6T 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Flash Programmable System Devices with 8032 Microcontroller Core
UPSD3233A-24U1 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Flash Programmable System Device with 8032 Microcontroller Core
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